Device for crushing coal and other materials



'C. AJKLOMAN. DEVICE FOR CRUSH ING GOAL AND'OTHER MATERIALS.

APPLICATION FILED JUNE 25,1919. v 1,408,607. Patented Mar. 7, 1922,

2 SHEETS-SHEET].

C. A. KLOMAN.

' DEVICE FOR CRUSHING COAL AN DOT HER MATERIALS.

APPLICATION FILED JUNE 25. m9.

1,408,607. Patented Mar. 7, 1922.

i u i 4 2 S-HEETSfSHEET 2. 5. l

W' a; wi l Jiram'rc PATENT OFFICE.

UNITED STATES CHARLES A. KLOMAN, OF IBELLEVUE, PENNSYLVANIA,

DEVICE FOR GRUSHING COAL AND OTHER MATERIALS.

Application filed June 25,

To all whom it may concern:

B it known that I, CHAnLns A. KLQMAN, citizen of the United States,residing at Bellevue, in the county of Allegheny and State ofPennsylvania, have invented a new and useful Improvement in Devices forCrushing Coal and other Materials, of which improvement the following isa specification.

My invention relates to improvements in devices for crushing coal andother materials. The objects of the invention are primarily to producea. combined crusher and pulverizer of the simplest construction and thgreatest possible efliciency, and secondly,

F to produce a pulverizer in which friction between the pulverizingsurfaces is entirely avoided, and thirdly, to produce a pulverizerpeculiarly applicable to the pulverization of coal owing to theavoidance of friction between the pulverizing surfaces. I accomplishthese objects by means of the device hereinafter more specificallydescribed reference being had to the accompanying drawings forming apart hereof, in which Figure l is a side elevation of. my improveddevice.

Figure 2 is an end elevation of the same.

Figure 3 is an enlarged end view partly in section of the crusher.

Figure 4 is a side elevation of the same partly in section.

Referring to said drawings, 1 is a foundation whereon is erected theframe 2 on the top members 3 of which the hopper 4 and crusher 5 aresupported. The said hopper is located beneath the conveyor 6 wherebymaterial to be crushed may be readily conveyed thereto. The said crusherincludes a casing in the sides of which the stems or shafts 8, 9 of thedownwardly projecting pairs of crusher arms 10, 11 are journalled, anapron 12 which is intended to prevent the crushed or broken materialfrom fouling the bearings of said arms extends around the sides on theinterior of said casing, and 13 is a grid which constitutes the bottomof the crusher and forms with said arms a grate for feeding a quantity:of crushed material to a chute 1 1, dependent upon the speed at whichthe device is operated. Each pair of downwardly projecting crusher arms'10, 11 is geared together by means of the segmental gears 15, 15, 16and is driven from the shaft 18, mounted in bearings 19, 20 formed inthe standards 21, 22 secured upon Specification of Letters Patent.

Patented Mar. 7. 1922.

1919. Serial No. 306,612.

the members 3; 23 is a gear mounted on said shaft 18 which meshes withand is driven by the worm shaft 24, on the outer end of which thesprocket gear 25 is mounted. T he sprocket 23 is driven by a chain orother suitable means from the gear 26 mounted on the power shaft 27 ofthe motor 28 a cam 29, 30 is mounted on each end of said shaft 18 towhich is connected the rods or shafts 31; the outer ends of which areprovided with elongated openings or slots 32, in which the blocks 33 aremounted, the pin of the cranks 84 being mounted in said blocks; thesegmental gear 15, mounted on each of said cranks which is in fact acontinuation of the stem of one of the crusher arms, meshes with, andwhen said cranks are oscillated transmits power to a correspondingsegmental gear 16 mounted on the outer end of the stem of the re mainingcrusher arm of each pair; the cams are arranged on different angularity,there being a difference of 180 degrees between the same so that onepair of crusher arms is oscillated in an opposite direction to that ofthe other pair of crusher arms; buffer springs 35 are mounted in saidslots 32, on each side of the blocks 33 for the purpose of taking up anyexcessive strain brought to bear upon the crusher arms, as for instance,should a piece of metal, or other extremely hard material be droppedbetween either one of the pairs the strain would be taken up by the saidsprings and thus prevent the probable fracture of the arm.

The oscillation of the arms gradually breaks th material fedtherebetween until the smallest portion of said material is forced inbetween the sharp; edges of the grids and the lower edges of thecrusherarms which action reduces the material to a comparatively fine orcomminuted condition and if it is desirable to reduce the material to afiner condition it may be fed through the chute into a p-ulverizer 36.

Having described my invention, what I claim and desire to secure byLetters Patent, is:

1. In a device of the kind described the combination of a crushercomprising a casing having means to feed material thereto, a gridforming the bottom of said casing, a plurality of crushing membersadapted to be moved laterally from and towards each other, and an apronlocated within the casing and extending below and adapted to cover thebearings of said crusher eieinents, to prevent fouling thereof by thematerial contained in the casing.

2. In a device of the kind described the combination of a ems 1e1-coi'nprising :1 casing, a. grid forming the bottom of said casing, atplurality of crushing members :11- ranged in pairs the members of eachpair being adapted to be moved hteraily from and towards each other inclose relation to the grid, the pairs of said members being adapted tohe altelnziteiy moved in opposite directions; from; each other, and anapron ioezited Within th casing extending below the bearings of saidcrusher elements so as to protect the same fyom the material Within thecasing.

in testimony whereof, I have hereunto s led my name in the presence oftWo subscribing witnesses.

CHARLES A. KLOMAN.

In the presence of-- JOHN H. HONEY,

CLARENCE A. WILLIAMS.

